A character from Torchwood and some episodes of Doctor who. He is played by John Barrowman. He often fights Aliens from outer space. He has the inability to die, yet still ages. Some theories suggest that he is the younger version of The Face Of Boe.

A character in the popular BBC series of Doctor Who and the spin off Torchwood. Played by John Barrowman, MBE. Captain Jack first appeared in the episode " The Empty Child" . Unfortunately Jack dies in his travels with the Doctor but is reserected by Rose when she absorbs the time vortex , it is later discovered that he is immortal. In the Future Jack is knowen as the face of Boe. Jack is the first non-heterosexual character in Doctor Who. A flirt Jack has often been referred to as a "walking innuendo".

Jack: Captain Jack Harkness. And who are you?
Martha: Martha Jones.
Jack: Nice to meet you Martha Jones.
The Doctor: Oh don't start!
Jack: I was only saying hello.
Martha: I don't mind.
Jack: Doctor.
The Doctor: Captain.
Jack: Good to see you.
The Doctor: And you. Same as ever. Although. Have you had work done?
Jack: You can talk.